1 files changed, 49 insertions, 0 deletions
diff --git a/scripts/battery-watch.sh b/scripts/battery-watch.sh
new file mode 100755
index 0000000..dfff1cd
--- /dev/null
+++ b/scripts/battery-watch.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+PID_PATH="$HOME/.cache/my-battery-watcher.pid";
+[[ ! -f "$PID_PATH" ]] && touch $PID_PATH;
+
+battery_component() { cat "/sys/class/power_supply/BAT0/$1"; }
+
+get_level() { battery_component capacity; }
+get_state() { battery_component status; }
+
+LOW_BATTERY="30";
+CRITICAL_BATTERY="10";
+
+DELAY=1;
+LOW_DELAY=240;
+CRITICAL_DELAY=60;
+
+oldpid=$(cat $PID_PATH);
+cmd=${1:-"start"};
+
+if [[ ! -z "$oldpid" ]] || [[ "$cmd" == "stop" ]]; then
+  kill $oldpid;
+fi;
+
+# :: Min -> Max -> Number -> Bool
+between() { test "$3" -gt "$1" && test "$3" -le "$2"; }
+
+if [[ "$cmd" == "start" ]]; then
+  while true; do
+    battery_level=$(get_level);
+    state=$(get_state);
+
+    if [[ "$state" == "Discharging" ]]; then
+      if (between $CRITICAL_BATTERY $LOW_BATTERY $battery_level); then
+        notify-send "Please charge this shit. Battery is at $battery_level%" -u normal;
+        sleep $LOW_DELAY;
+      fi
+
+      if (between 0 $CRITICAL_BATTERY $battery_level); then
+        notify-send "HOLY SHIT DUDE. I'M DYING. Battery is at $battery_level%" -u critical;
+        sleep $CRITICAL_DELAY;
+      fi
+    fi
+
+    sleep $DELAY;
+  done &
+
+  echo $! > $PID_PATH;
+fi;